regex, awk, grep question "how to" Post: 302723269

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

correct syntax for using "grep regex filename" ?

I'm trying to grep a long ls by looking at the beginning of each filename for example: Many files begin with yong_ho_free_2005... Many files begin with yong_ho_2005... I can't just use "grep yong_ho" otherwise It'll display both files. So I'm trying to use a regex but my syntax is wrong. ...

2. UNIX for Dummies Questions & Answers

Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Hi Friends, Can any of you explain me about the below line of code? mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'` Im not able to understand, what exactly it is doing :confused: Any help would be useful for me. Lokesha

3. Shell Programming and Scripting

ls -laR | grep "^-" | awk '{print $9}'| grep "$.txt"

Hi, I don't know hot to make this command work: ls -laR | grep "^-" | awk '{print $9}'| grep "$.txt" It should return the list of file .txt It's important to search .txt at the end of the line, becouse some file name have "txt" in their name but have other extensions

4. Shell Programming and Scripting

MEM=`ps v $PPID| grep -i db2 | grep -v grep| awk '{ if ( $7 ~ " " ) { print 0 } else

Hi Guys, I need to set the value of $7 to zero in case $7 is NULL. I've tried the below command but doesn't work. Any ideas. thanks guys. MEM=`ps v $PPID| grep -i db2 | grep -v grep| awk '{ if ( $7 ~ " " ) { print 0 } else { print $7}}' ` Harby.

5. Shell Programming and Scripting

cat $como_file | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g'

hi All, cat file_name | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g' Can this be done by using sed or awk alone

6. Shell Programming and Scripting

perl: question about the regex "=~"

Hello all Is there a "not" reversal method for the =~ regex thingy in perl ? for example, in the snippet below, i have placed a ! in front of the =~ to "not it".. although it quite obviously doesn't work and is just me trying to get across the question in a way that somebody may understand :o...

7. Shell Programming and Scripting

ps -ef | grep "string1" "string2" " "string3"

Hi all, can any one suggest me the script to grep multiple strings from ps -ef pls correct the below script . its not working/ i want to print OK if all the below process are running in my solaris system. else i want to print NOT OK. bash-3.00$ ps -ef | grep blu lscpusr 48 42 ...

8. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone...

9. Shell Programming and Scripting

grep regex, match exact string which includes "/" anywhere on line.

I have a file that contains the 2 following lines (from /proc/mounts) /dev/sdc1 /mnt/backup2 xfs rw,relatime,attr2,noquota 0 0 /dev/sdb1 /mnt/backup xfs rw,relatime,attr2,noquota 0 0 I need to match the string in the second column exactly so that only one result is returned, e.g. > grep...

10. Shell Programming and Scripting

how to use "cut" or "awk" or "sed" to remove a string

logs: "/home/abc/public_html/index.php" "/home/abc/public_html/index.php" "/home/xyz/public_html/index.php" "/home/xyz/public_html/index.php" "/home/xyz/public_html/index.php" how to use "cut" or "awk" or "sed" to get the following result: abc abc xyz xyz xyz

LEARN ABOUT OPENDARWIN

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep.  If no file is speci-
       fied, then the standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed	if  necessary  and
       fed to grep.

       If  zgrep  is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep.  If the GREP environment variable is set, zgrep uses
       it as the grep program to be invoked. For example:

	   for sh:  GREP=fgrep	zgrep string files
	   for csh: (setenv GREP fgrep; zgrep string files)

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)

																	  ZGREP(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

correct syntax for using "grep regex filename" ?

Discussion started by: yongho

2. UNIX for Dummies Questions & Answers

Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Discussion started by: Lokesha

3. Shell Programming and Scripting

ls -laR | grep "^-" | awk '{print $9}'| grep "$.txt"

Discussion started by: DNAx86

4. Shell Programming and Scripting

MEM=`ps v $PPID| grep -i db2 | grep -v grep| awk '{ if ( $7 ~ " " ) { print 0 } else

Discussion started by: hariza